Seasonal changes to waterbodies are generally defined by precipitation and temperature patterns during different times of the year. As the weather gets warmer, the density difference between warm surface waters and cold bottom waters increases to a point where two separate layers are formed. This phenomenon, called summer stratification, prevents whole lake mixing creating large algae blooms on the top surface of the water. A common filtration issue is uneven loading on a filter element because of the decreasing feed pressure along the element. This causes the inlet end to foul much faster than the outlet end.  This is especially true when multiple elements are placed in series.  The dynamic flow mechanism (i.e. a dual-vortex flow pattern) induced by the coiled membrane filter (CMF) can effectively address this issue. However, when operating with highly challenged influent, such as algae-abundant surface water during summer time, the uneven loading can still occur.